Team:Tsinghua-A/picture box/js/jquery nivo
/*
* jQuery Nivo Slider v2.5.2 * http://nivo.dev7studios.com * * Copyright 2011, Gilbert Pellegrom * Free to use and abuse under the MIT license. * http://www.opensource.org/licenses/mit-license.php * * March 2010 */
(function($) {
var NivoSlider = function(element, options){
//Defaults are below var settings = $.extend({}, $.fn.nivoSlider.defaults, options);
//Useful variables. Play carefully.
var vars = {
currentSlide: 0,
currentImage: ,
totalSlides: 0,
randAnim: ,
running: false,
paused: false,
stop: false
};
//Get this slider
var slider = $(element);
slider.data('nivo:vars', vars);
slider.css('position','relative');
slider.addClass('nivoSlider');
//Find our slider children
var kids = slider.children();
kids.each(function() {
var child = $(this);
var link = ;
if(!child.is('img')){
if(child.is('a')){
child.addClass('nivo-imageLink');
link = child;
}
child = child.find('img:first');
}
//Get img width & height
var childWidth = child.width();
if(childWidth == 0) childWidth = child.attr('width');
var childHeight = child.height();
if(childHeight == 0) childHeight = child.attr('height');
//Resize the slider
if(childWidth > slider.width()){
slider.width(childWidth);
}
if(childHeight > slider.height()){
slider.height(childHeight);
}
if(link != ){
link.css('display','none');
}
child.css('display','none');
vars.totalSlides++;
});
//Set startSlide
if(settings.startSlide > 0){
if(settings.startSlide >= vars.totalSlides) settings.startSlide = vars.totalSlides - 1;
vars.currentSlide = settings.startSlide;
}
//Get initial image
if($(kids[vars.currentSlide]).is('img')){
vars.currentImage = $(kids[vars.currentSlide]);
} else {
vars.currentImage = $(kids[vars.currentSlide]).find('img:first');
}
//Show initial link
if($(kids[vars.currentSlide]).is('a')){
$(kids[vars.currentSlide]).css('display','block');
}
//Set first background
slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat');
//Create caption
slider.append(
$(');
// Process caption function var processCaption = function(settings){ var nivoCaption = $('.nivo-caption', slider); if(vars.currentImage.attr('title') != && vars.currentImage.attr('title') != undefined){ var title = vars.currentImage.attr('title'); if(title.substr(0,1) == '#') title = $(title).html();
if(nivoCaption.css('display') == 'block'){ nivoCaption.children('.nivo-caption-inner').fadeOut(settings.animSpeed, function(){ $(this).html(title); $(this).fadeIn(settings.animSpeed); }); } else { nivoCaption.children('.nivo-caption-inner').html(title); } nivoCaption.fadeIn(settings.animSpeed); } else { nivoCaption.fadeOut(settings.animSpeed); } }
//Process initial caption
processCaption(settings);
//In the words of Super Mario "let's a go!"
var timer = 0;
if(!settings.manualAdvance && kids.length > 1){
timer = setInterval(function(){ nivoRun(slider, kids, settings, false); }, settings.pauseTime);
}
//Add Direction nav
if(settings.directionNav){
slider.append(' //Hide Direction nav
if(settings.directionNavHide){
$('.nivo-directionNav', slider).hide();
slider.hover(function(){
$('.nivo-directionNav', slider).show();
}, function(){
$('.nivo-directionNav', slider).hide();
});
}
$('a.nivo-prevNav', slider).live('click', function(){
if(vars.running) return false;
clearInterval(timer);
timer = ;
vars.currentSlide -= 2;
nivoRun(slider, kids, settings, 'prev');
});
$('a.nivo-nextNav', slider).live('click', function(){
if(vars.running) return false;
clearInterval(timer);
timer = ;
nivoRun(slider, kids, settings, 'next');
});
}
//Add Control nav
if(settings.controlNav){
var nivoControl = $('');
slider.append(nivoControl);
for(var i = 0; i < kids.length; i++){
if(settings.controlNavThumbs){
var child = kids.eq(i);
if(!child.is('img')){
child = child.find('img:first');
}
if (settings.controlNavThumbsFromRel) {
nivoControl.append('<a class="nivo-control" rel="'+ i +'"><img src="'+ child.attr('rel') + '" alt="" /></a>');
} else {
nivoControl.append('<a class="nivo-control" rel="'+ i +'"><img src="'+ child.attr('src').replace(settings.controlNavThumbsSearch, settings.controlNavThumbsReplace) +'" alt="" /></a>');
}
} else {
nivoControl.append('<a class="nivo-control" rel="'+ i +'">'+ (i + 1) +'</a>');
}
}
//Set initial active link
$('.nivo-controlNav a:eq('+ vars.currentSlide +')', slider).addClass('active');
$('.nivo-controlNav a', slider).live('click', function(){
if(vars.running) return false;
if($(this).hasClass('active')) return false;
clearInterval(timer);
timer = ;
slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat');
vars.currentSlide = $(this).attr('rel') - 1;
nivoRun(slider, kids, settings, 'control');
});
}
//Keyboard Navigation
if(settings.keyboardNav){
$(window).keypress(function(event){
//Left
if(event.keyCode == '37'){
if(vars.running) return false;
clearInterval(timer);
timer = ;
vars.currentSlide-=2;
nivoRun(slider, kids, settings, 'prev');
}
//Right
if(event.keyCode == '39'){
if(vars.running) return false;
clearInterval(timer);
timer = ;
nivoRun(slider, kids, settings, 'next');
}
});
}
//For pauseOnHover setting
if(settings.pauseOnHover){
slider.hover(function(){
vars.paused = true;
clearInterval(timer);
timer = ;
}, function(){
vars.paused = false;
//Restart the timer
if(timer == && !settings.manualAdvance){
timer = setInterval(function(){ nivoRun(slider, kids, settings, false); }, settings.pauseTime);
}
});
}
//Event when Animation finishes
slider.bind('nivo:animFinished', function(){
vars.running = false;
//Hide child links
$(kids).each(function(){
if($(this).is('a')){
$(this).css('display','none');
}
});
//Show current link
if($(kids[vars.currentSlide]).is('a')){
$(kids[vars.currentSlide]).css('display','block');
}
//Restart the timer
if(timer == && !vars.paused && !settings.manualAdvance){
timer = setInterval(function(){ nivoRun(slider, kids, settings, false); }, settings.pauseTime);
}
//Trigger the afterChange callback
settings.afterChange.call(this);
});
// Add slices for slice animations
var createSlices = function(slider, settings, vars){
for(var i = 0; i < settings.slices; i++){
var sliceWidth = Math.round(slider.width()/settings.slices); if(i == settings.slices-1){ slider.append(
$('').css({left:(sliceWidth*i)+'px', width:(slider.width()-(sliceWidth*i))+'px', height:'0px', opacity:'0', background: 'url("'+ vars.currentImage.attr('src') +'") no-repeat -'+ ((sliceWidth + (i * sliceWidth)) - sliceWidth) +'px 0%' }) ); } else { slider.append(
$('').css({left:(sliceWidth*i)+'px', width:sliceWidth+'px', height:'0px', opacity:'0', background: 'url("'+ vars.currentImage.attr('src') +'") no-repeat -'+ ((sliceWidth + (i * sliceWidth)) - sliceWidth) +'px 0%' }) ); } }
}
// Add boxes for box animations var createBoxes = function(slider, settings, vars){ var boxWidth = Math.round(slider.width()/settings.boxCols); var boxHeight = Math.round(slider.height()/settings.boxRows);
for(var rows = 0; rows < settings.boxRows; rows++){ for(var cols = 0; cols < settings.boxCols; cols++){ if(cols == settings.boxCols-1){ slider.append(
$('').css({opacity:0, left:(boxWidth*cols)+'px', top:(boxHeight*rows)+'px', width:(slider.width()-(boxWidth*cols))+'px', height:boxHeight+'px', background: 'url("'+ vars.currentImage.attr('src') +'") no-repeat -'+ ((boxWidth + (cols * boxWidth)) - boxWidth) +'px -'+ ((boxHeight + (rows * boxHeight)) - boxHeight) +'px' }) ); } else { slider.append(
$('').css({opacity:0, left:(boxWidth*cols)+'px', top:(boxHeight*rows)+'px', width:boxWidth+'px', height:boxHeight+'px', background: 'url("'+ vars.currentImage.attr('src') +'") no-repeat -'+ ((boxWidth + (cols * boxWidth)) - boxWidth) +'px -'+ ((boxHeight + (rows * boxHeight)) - boxHeight) +'px' }) ); } } } }
// Private run method
var nivoRun = function(slider, kids, settings, nudge){ //Get our vars var vars = slider.data('nivo:vars');
//Trigger the lastSlide callback
if(vars && (vars.currentSlide == vars.totalSlides - 1)){
settings.lastSlide.call(this); }
// Stop
if((!vars || vars.stop) && !nudge) return false;
//Trigger the beforeChange callback settings.beforeChange.call(this);
//Set current background before change if(!nudge){ slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat'); } else { if(nudge == 'prev'){ slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat'); } if(nudge == 'next'){ slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat'); } } vars.currentSlide++;
//Trigger the slideshowEnd callback
if(vars.currentSlide == vars.totalSlides){ vars.currentSlide = 0; settings.slideshowEnd.call(this); } if(vars.currentSlide < 0) vars.currentSlide = (vars.totalSlides - 1); //Set vars.currentImage if($(kids[vars.currentSlide]).is('img')){ vars.currentImage = $(kids[vars.currentSlide]); } else { vars.currentImage = $(kids[vars.currentSlide]).find('img:first'); }
//Set active links if(settings.controlNav){ $('.nivo-controlNav a', slider).removeClass('active'); $('.nivo-controlNav a:eq('+ vars.currentSlide +')', slider).addClass('active'); }
//Process caption processCaption(settings);
// Remove any slices from last transition $('.nivo-slice', slider).remove();
// Remove any boxes from last transition $('.nivo-box', slider).remove();
if(settings.effect == 'random'){ var anims = new Array('sliceDownRight','sliceDownLeft','sliceUpRight','sliceUpLeft','sliceUpDown','sliceUpDownLeft','fold','fade',
'boxRandom','boxRain','boxRainReverse','boxRainGrow','boxRainGrowReverse');
vars.randAnim = anims[Math.floor(Math.random()*(anims.length + 1))]; if(vars.randAnim == undefined) vars.randAnim = 'fade'; }
//Run random effect from specified set (eg: effect:'fold,fade')
if(settings.effect.indexOf(',') != -1){
var anims = settings.effect.split(',');
vars.randAnim = anims[Math.floor(Math.random()*(anims.length))];
if(vars.randAnim == undefined) vars.randAnim = 'fade';
}
//Run effects vars.running = true; if(settings.effect == 'sliceDown' || settings.effect == 'sliceDownRight' || vars.randAnim == 'sliceDownRight' || settings.effect == 'sliceDownLeft' || vars.randAnim == 'sliceDownLeft'){ createSlices(slider, settings, vars); var timeBuff = 0; var i = 0; var slices = $('.nivo-slice', slider); if(settings.effect == 'sliceDownLeft' || vars.randAnim == 'sliceDownLeft') slices = $('.nivo-slice', slider)._reverse();
slices.each(function(){ var slice = $(this); slice.css({ 'top': '0px' }); if(i == settings.slices-1){ setTimeout(function(){ slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed, , function(){ slider.trigger('nivo:animFinished'); }); }, (100 + timeBuff)); } else { setTimeout(function(){ slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed); }, (100 + timeBuff)); } timeBuff += 50; i++; }); } else if(settings.effect == 'sliceUp' || settings.effect == 'sliceUpRight' || vars.randAnim == 'sliceUpRight' || settings.effect == 'sliceUpLeft' || vars.randAnim == 'sliceUpLeft'){ createSlices(slider, settings, vars); var timeBuff = 0; var i = 0; var slices = $('.nivo-slice', slider); if(settings.effect == 'sliceUpLeft' || vars.randAnim == 'sliceUpLeft') slices = $('.nivo-slice', slider)._reverse();
slices.each(function(){ var slice = $(this); slice.css({ 'bottom': '0px' }); if(i == settings.slices-1){ setTimeout(function(){ slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed, , function(){ slider.trigger('nivo:animFinished'); }); }, (100 + timeBuff)); } else { setTimeout(function(){ slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed); }, (100 + timeBuff)); } timeBuff += 50; i++; }); } else if(settings.effect == 'sliceUpDown' || settings.effect == 'sliceUpDownRight' || vars.randAnim == 'sliceUpDown' || settings.effect == 'sliceUpDownLeft' || vars.randAnim == 'sliceUpDownLeft'){ createSlices(slider, settings, vars); var timeBuff = 0; var i = 0; var v = 0; var slices = $('.nivo-slice', slider); if(settings.effect == 'sliceUpDownLeft' || vars.randAnim == 'sliceUpDownLeft') slices = $('.nivo-slice', slider)._reverse();
slices.each(function(){ var slice = $(this); if(i == 0){ slice.css('top','0px'); i++; } else { slice.css('bottom','0px'); i = 0; }
if(v == settings.slices-1){ setTimeout(function(){ slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed, , function(){ slider.trigger('nivo:animFinished'); }); }, (100 + timeBuff)); } else { setTimeout(function(){ slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed); }, (100 + timeBuff)); } timeBuff += 50; v++; }); } else if(settings.effect == 'fold' || vars.randAnim == 'fold'){ createSlices(slider, settings, vars); var timeBuff = 0; var i = 0;
$('.nivo-slice', slider).each(function(){ var slice = $(this); var origWidth = slice.width(); slice.css({ top:'0px', height:'100%', width:'0px' }); if(i == settings.slices-1){ setTimeout(function(){ slice.animate({ width:origWidth, opacity:'1.0' }, settings.animSpeed, , function(){ slider.trigger('nivo:animFinished'); }); }, (100 + timeBuff)); } else { setTimeout(function(){ slice.animate({ width:origWidth, opacity:'1.0' }, settings.animSpeed); }, (100 + timeBuff)); } timeBuff += 50; i++; }); } else if(settings.effect == 'fade' || vars.randAnim == 'fade'){ createSlices(slider, settings, vars);
var firstSlice = $('.nivo-slice:first', slider);
firstSlice.css({
'height': '100%',
'width': slider.width() + 'px'
});
firstSlice.animate({ opacity:'1.0' }, (settings.animSpeed*2), , function(){ slider.trigger('nivo:animFinished'); }); }
else if(settings.effect == 'slideInRight' || vars.randAnim == 'slideInRight'){
createSlices(slider, settings, vars);
var firstSlice = $('.nivo-slice:first', slider);
firstSlice.css({
'height': '100%',
'width': '0px',
'opacity': '1'
});
firstSlice.animate({ width: slider.width() + 'px' }, (settings.animSpeed*2), , function(){ slider.trigger('nivo:animFinished'); });
}
else if(settings.effect == 'slideInLeft' || vars.randAnim == 'slideInLeft'){
createSlices(slider, settings, vars);
var firstSlice = $('.nivo-slice:first', slider);
firstSlice.css({
'height': '100%',
'width': '0px',
'opacity': '1',
'left': ,
'right': '0px'
});
firstSlice.animate({ width: slider.width() + 'px' }, (settings.animSpeed*2), , function(){
// Reset positioning
firstSlice.css({
'left': '0px',
'right':
});
slider.trigger('nivo:animFinished');
});
}
else if(settings.effect == 'boxRandom' || vars.randAnim == 'boxRandom'){ createBoxes(slider, settings, vars);
var totalBoxes = settings.boxCols * settings.boxRows; var i = 0; var timeBuff = 0;
var boxes = shuffle($('.nivo-box', slider)); boxes.each(function(){ var box = $(this); if(i == totalBoxes-1){ setTimeout(function(){ box.animate({ opacity:'1' }, settings.animSpeed, , function(){ slider.trigger('nivo:animFinished'); }); }, (100 + timeBuff)); } else { setTimeout(function(){ box.animate({ opacity:'1' }, settings.animSpeed); }, (100 + timeBuff)); } timeBuff += 20; i++; }); } else if(settings.effect == 'boxRain' || vars.randAnim == 'boxRain' || settings.effect == 'boxRainReverse' || vars.randAnim == 'boxRainReverse' ||
settings.effect == 'boxRainGrow' || vars.randAnim == 'boxRainGrow' || settings.effect == 'boxRainGrowReverse' || vars.randAnim == 'boxRainGrowReverse'){
createBoxes(slider, settings, vars);
var totalBoxes = settings.boxCols * settings.boxRows; var i = 0; var timeBuff = 0;
// Split boxes into 2D array var rowIndex = 0; var colIndex = 0; var box2Darr = new Array(); box2Darr[rowIndex] = new Array(); var boxes = $('.nivo-box', slider); if(settings.effect == 'boxRainReverse' || vars.randAnim == 'boxRainReverse' ||
settings.effect == 'boxRainGrowReverse' || vars.randAnim == 'boxRainGrowReverse'){
boxes = $('.nivo-box', slider)._reverse(); } boxes.each(function(){ box2Darr[rowIndex][colIndex] = $(this); colIndex++; if(colIndex == settings.boxCols){ rowIndex++; colIndex = 0; box2Darr[rowIndex] = new Array(); } });
// Run animation for(var cols = 0; cols < (settings.boxCols * 2); cols++){ var prevCol = cols; for(var rows = 0; rows < settings.boxRows; rows++){ if(prevCol >= 0 && prevCol < settings.boxCols){ /* Due to some weird JS bug with loop vars being used in setTimeout, this is wrapped with an anonymous function call */ (function(row, col, time, i, totalBoxes) { var box = $(box2Darr[row][col]);
var w = box.width();
var h = box.height();
if(settings.effect == 'boxRainGrow' || vars.randAnim == 'boxRainGrow' ||
settings.effect == 'boxRainGrowReverse' || vars.randAnim == 'boxRainGrowReverse'){
box.width(0).height(0);
}
if(i == totalBoxes-1){ setTimeout(function(){ box.animate({ opacity:'1', width:w, height:h }, settings.animSpeed/1.3, , function(){ slider.trigger('nivo:animFinished'); }); }, (100 + time)); } else { setTimeout(function(){ box.animate({ opacity:'1', width:w, height:h }, settings.animSpeed/1.3); }, (100 + time)); } })(rows, prevCol, timeBuff, i, totalBoxes); i++; } prevCol--; } timeBuff += 100; } } }
// Shuffle an array var shuffle = function(arr){ for(var j, x, i = arr.length; i; j = parseInt(Math.random() * i), x = arr[--i], arr[i] = arr[j], arr[j] = x); return arr; }
// For debugging
var trace = function(msg){
if (this.console && typeof console.log != "undefined")
console.log(msg);
}
// Start / Stop
this.stop = function(){
if(!$(element).data('nivo:vars').stop){
$(element).data('nivo:vars').stop = true;
trace('Stop Slider');
}
}
this.start = function(){
if($(element).data('nivo:vars').stop){
$(element).data('nivo:vars').stop = false;
trace('Start Slider');
}
}
//Trigger the afterLoad callback
settings.afterLoad.call(this);
return this;
};
$.fn.nivoSlider = function(options) {
return this.each(function(key, value){
var element = $(this);
// Return early if this element already has a plugin instance
if (element.data('nivoslider')) return element.data('nivoslider');
// Pass options to plugin constructor
var nivoslider = new NivoSlider(this, options);
// Store plugin object in this element's data
element.data('nivoslider', nivoslider);
});
};
//Default settings $.fn.nivoSlider.defaults = { effect: 'random', slices: 15, boxCols: 8, boxRows: 4, animSpeed: 500, pauseTime: 3000, startSlide: 0, directionNav: true, directionNavHide: true, controlNav: true, controlNavThumbs: false,
controlNavThumbsFromRel: false,
controlNavThumbsSearch: '.jpg', controlNavThumbsReplace: '_thumb.jpg', keyboardNav: true, pauseOnHover: true, manualAdvance: false, captionOpacity: 0.8, prevText: 'Prev', nextText: 'Next', beforeChange: function(){}, afterChange: function(){}, slideshowEnd: function(){},
lastSlide: function(){},
afterLoad: function(){}
};
$.fn._reverse = [].reverse;
})(jQuery);
